Sildenafil (Viagra citrate) is usually used by individuals unable to accomplish and preserve an erection for long enough to make love. This medicine was developed by the Pfizer business and ended up being available in 1998. Heaven medicine of Sildenafil is among the most identifiable brands on the planet. The active component of this medication was originally examined for usage in clients diagnosed with hypertension and angina pectoris. Several of the problems you may experience when taking this medicine feature beclouded vision, enhanced light level of sensitivity, sudden vision loss and trouble telling the distinction in between green and blue. If you are older compared to 65 the impacts of Sildenafil could be more powerful in you if as compared to younger patients, so ensure you tell you medical company exactly how old you are prior to beginning the therapy. A lesser amount could be suggested to see to it this medicine is risk-free for you.